Protective cot



Patented June 28, 1949 UNITED STATES PATENT OFFICE PROTECTIVE 001 StevenJ. Krannak, St. PauL'Minn. Application April s0,194 Serial No. 591,054

5 Claims.

1 My invention relates to an improvement in a protective cot wherein itis desired to protect and seal an injured finger.

Finger cots have been made for numerous years. Some of these are merelysoft rubber sheaths which fit tightly about the finger. Such deviceshave the obvious disadvantage that they tend to cut off circulation. Ifthe cot-s are made of larger size they slip from the finger readily.Furthermore, should it be desired to use a medicament in the cot, it isvirtually impossible to seal such a medicament without using a sheath sotight as to impede proper circulation,

It is the object of the present invention to provide a finger cot orprotective sheath which may be placed over a finger or the like andwhich may be sealed to the finger. As a result a sheath of larger sizemay be employed without danger of having the cot slip out of place, i

A feature of the present invention lies in the provision of a cot whichprovides a sealed chamher in which a liquid medicament or the like maybe placed without danger of leakage. The cot is designed to fit somewhatloosely over the injured finger, leaving a space therein which may befilled with a medicament if desired. The cot is marginally sealed to thefinger, thus preventing danger of leakage.

While, for certain purposes, it is preferable to use cots havingperforations therein to permit a circulation of air to the injuredportion of the finger, the present out is designed for use particularlywhere the injury is to be sealed. The construction is particularlyuseful where the Wound is to be bathed in a liquid medicament. Bysealing the cot to the finger at the marginal edge of the cot liquidcontained within the cot is prevented from spilling and the hand may beused in a normal manner.

It is a further feature of the present invention to provide a ring ofundrying adhesive about the periphery of the cot and to normally coverthis adhesive with a strip of holland cloth, or the like, which may beremoved when the cot is used. With such a structure the cot may binserted in place with the holland cloth attached and the holland clothmay then be removed so thatthe marginal edge of the sheath may beattached to the finger. Similarly, if preferred the protective fabriccovering may be removed to expose the adhesive before the finger isinserted.

A feature of the present invention liesin providing a cot with amarginalringof adhesive, to provide a covering strip of holland cloth orthe like having an unattached end or tongues by means of which the clothmay be easily removed, and to provide a tongue or lip projecting beyondthe adhesive by means of which the cot may be detachedwhen desired. Withsuch a combination the cot may be conveniently used and may be easilyattached or detached.

These and other objects and novel features of my invention will be moreclearly and fully set forth in the following specification and claims.

In the drawings forming a part of my specification:

Figure 1 is a perspective view of a tapered loot showing theconstruction thereof.

Figure 2 is a sectional view through the cot illustrated in Figure 1.

Figure 3 is a perspective view of a modified form of cot.

Figure 4 is a sectional View through the upper portion of'the cotillustrated in Figure 3.

Figure 5 is a perspective view of a cot construction similar to thatshown in Figure 3, but designed to contain a whole finger rather thanthe tip thereof.

The cot A, illustrated in Figures 1 and 2 of the drawings, is cup shapedin form having a rounded bottom end If! and outwardly tapered side wallsII. This cot is designed for attachment to the tip end of the finger,nose, or other protuberances having an injury thereupon. The cot A isdesigned to seal to the skin surrounding the injury, leaving a hollowcup-shaped central portion in which a medicament may be retained ifdesired.

Surrounding the marginal edge of the side walls II I provide a strip ofadhesive [2 which entirely encircles the cup. This adhesive is a highpressure sensitive type commonly used on adhesive tape'or other pressuresensitive tape. The adhesive 12 is designed to attach the cot securelyto the finger about the injured portion thereof.

In order to normally protect the adhesive I2, I provide a strip I3 ofholland cloth, or similar material, which overlies the adhesive andnormally conceals the same. One end M of this strip I3 overlaps the end[5 of the strip first adhered to the adhesive 12. The overlapping end l4forms a tongue which is not held in place against the adhesive and whichtherefore may be grasped between the fingers, providing a fingerengaging strip, and which permits the strip to be readily removed.

When the cot is adhered to the skin about its marginal edge it wouldnormally be difficult to remove. Therefore in order to simplify theremoval of the cot and the disengagement of the adhesive from the skin,I provide an ear I 6 integral with the side wall 1 I which projectsbeyond the ring of adhesive 12. This adhesive free ear permits the edgeof the cot to be engaged .by the fingers so that the cot may be readilyremoved. Obviously in removing the cot it is only necessary to grasp theear l6 and to pull the cot out of engagement with the skin ,to which itis adhered.

In Figure 3 I disclose a cot B of more conventional shape. The cot B isdesigned for use in covering an injury near the finger tip, but spacedtherefrom. To accomplish the desired result the cot B is formed with acylindrical wall I! having a closed end l9 and an open end 20. As in thecase of the cot A, the cot B may be formed of thin plastic material,rubber or any other liquidproof material which would not be injurious toopen wounds- The open end 20 of the cot B is provided with a ring ofadhesive 2| encircling the upper edge. This adhesive is of thenon-drying type commonly used on adhesive tape or other pressuresensitive tape. A strip of holland cloth 22, or other protectivematerial overlies the adhesive 2| and is normally adhered thereto. Oneend 23 of the strip 22 is firmly adhered to the adhesive 2l while theother end 24 overlaps the end 23 and overlies the same. This end 24 isnot adhered in its proper position and therefore may be readily graspedin order to remove the protective strip 22 from the adhesive. It wouldalso be possible to provide a strip 22 with a project ing tab or ear bymeans of which the strip could be removed.

In order that the cot may be removed from the finger and the adhesivemay be detached from the skin I provide an ear 25 integral with the wallof the cot and projecting therefrom beyond the adhesive strip 2|. Thiscar 25 is not coated With adhesive and is thus free from the skin.

In removing the cot B it is, only necessary to grasp the ear 25 and topull the adhesive on the out, out of contact with the skin.

In Figure of the drawings a modified form of cot construction C isillustrated. This form of construction C is identical with the form B,ex- Cfillt that it is longer in length so as to cover a whole finger.The cot C is provided with a side wall portion 26 which is substantiallycylindrical in shape and is provided with a closed end 21 and an openend 29. The cot may be formed of plastic, rubber, or an other suitable,material. \IVhen formed of plastic, it is usually preferable to reducethe diameter of the open end of the cot slightly to insure a close fitbetween the edge of the cot and the finger.

A strip of adhesive 30 is provided on the inner surface of the side wall26 at the open end 29 thereof. A strip 3| of holland cloth or the likenormally overlies the adhesive 30 and is secured thereto. One end 32 ofthe strip 3| is tightly adhered to the adhesive while the other end 33overlies the end 32 and is free from the adhesive. Thus the strip 3| maybe removed by grasping the unadhered end 33 of the strip and pulling thestrip away from the adhesive.

An ear 34 projects beyond the side wall 26 and is integral therewith.This ear 34 is provided beyond the strip 30 of adhesive, and is uncoatedwith adhesive on either side thereof. The ear 34 serves to assist indetaching the cot, it being possible to grasp the ear 34 between thefingers hesive by means of which the cot may be disengaged from thefinger.

- In accordance with the patent statutes, I have described theprinciples of construction and operation of my protective cot and whileI have endeavored to set forth the best embodiments thereof, I desire tohave it understood that ohvious changes may be made within the scope ofthe following claims without departing from the spirit of my invention.

I claim:

1. A protective cot comprising a concave body having flaring walls, aring of pressure sensitive adhesive extending along the inner surface ofthe flaring walls adjacent the marginal edge thereof, a protectivecovering strip overlying said adhesive, and an unattached integral earon said body projecting from the marginal edge thereof, said ear beingfree of the adhesive.

2. A protective cot comprising a concave body having flaring walls, astrip of adhesive extending about the interior. of the flaring walls atthe marginal edge thereof, a protective covering strip overlying theadhesive and having one end thereon which overlaps the other end thereofand projects outwardly beyond the uter edge of the strip, said free endbeing engageable by the fingers for removing the covering strip.

3. A protective cot comprising a concave body having flaring Walls, aring of pressure sensitive adhesive encircling the flaring walls on theinner surface thereof adjacent the marginal edge thereof, a coveringstrip normally coverin said adhesive, and an integral ear on said bodyproiectin bey nd said adhe ive.

4. A protective cot comprising a concave body, a ring of pressuresensitive adhesive encircling the body on the inner surface thereofadjacent themar-ginal edge thereof, a covering strip normally coveringsaid adhesive, and an integral ear on said body projecting beyond saidstrip of adhesive and beyond said covering strip.

,5. A protective cot comprising a body having a rounded endand inclinedside walls, a ring of adhesive extending about t einner surface of saidbody adjacent the marginal edge thereof, a strip normally covering saidadhesive and having an end thereupon overlapping the other end thereofand projecting outwardly beyond the periphery of the remainder of thestrip by means of which the strip may be readily engaged, and anintegral projecting car on the inclined wall of said body projectingbeyond said ring of adhesive.

STEVEN J. KRANNAK.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,231,194 Prince June 26, 19171,555,960 Fuller Oct. 6, 1925 2,389,831 Welsh Nov. 27, 1945

